No casualties were, however, reported in the incident.
The fire was first detected by the officials who reached Rajiv Bhavan housing the water resources department, office of the Odisha State Disaster Management Authority (OSDMA), Special Relief Commission (RSC) office and certain portion of agriculture department.
"The fire probably originated from the air-conditioner of the conference hall in first floor of Rajiv Bhavan due to shot circuit," said fire officer Ramesh Majhi.
Fire brigade personnel had a tough time in bringing the blaze under control as the fire tenders could not enter into Rajiv Bhavan premises due to norrow main gate.
Water resources department secretary Suresh Mohapatra said the government will certainly review the fire fighting system at Rajiv Bhavan.